Figure 1. Categorizing patients into those that received recommended versus frequent surveillance.

Patients were categorized based on consensus guideline recommendations³ and length of the surveillance window. At the top of the figure, the timeline of the surveillance window is depicted in months. X denotes the recommended time of cystoscopy. We allotted a 1.5-month grace period to allow for surveillance cystoscopies that were done slightly earlier than the 12- and 24-month time points. The lower half of the Figure depicts the number of patients that were categorized into recommended versus frequent surveillance, overall and stratified by the length of the surveillance window, along with the number of cystoscopies they underwent.

‡ Exact numbers not reported to protect confidentiality.